EP 3514528 A1 20190724 - NONDESTRUCTIVE INSPECTION METHOD FOR A HEAT EXCHANGER EMPLOYING ADAPTIVE NOISE THRESHOLDING
Title (en)
NONDESTRUCTIVE INSPECTION METHOD FOR A HEAT EXCHANGER EMPLOYING ADAPTIVE NOISE THRESHOLDING
Title (de)
ZERSTÖRUNGSFREIES INSPEKTIONSVERFAHREN FÜR EINEN WÄRMETAUSCHER MIT ADAPTIVER RAUSCHSCHWELLENWERTBESTIMMUNG
Title (fr)
PROCÉDÉ D'INSPECTION NON DESTRUCTIVE POUR UN ÉCHANGEUR DE CHALEUR AU MOYEN DE SEUILS DE BRUIT ADAPTATIF
Publication
Application
Priority
- EP 10858012 A 20101005
- US 89594210 A 20101001
- US 2010051382 W 20101005
Abstract (en)
A method of eddy current testing for flaws in a tube is provided that includes passing an eddy current probe through the tube and obtaining eddy current data for a number of positions along the tube; analyzing the eddy current data to generate background noise data for a number of positions along the tube, analyzing the eddy current data to generate extracted data for a number of positions along the tube; and determining whether a flaw of a particular category is present in the tube based on a set of one or more of rules applied to at least a portion of the extracted data, wherein at least one of the rules uses a particular part of the extracted data and employs a threshold that is a function a particular part of the background noise data that is associated with the particular part of the extracted data.
IPC 8 full level
G01N 27/90 (2006.01)
CPC (source: EP KR US)
G01N 27/9046 (2013.01 - EP KR US); G01R 33/12 (2013.01 - KR); Y02E 30/30 (2013.01 - EP)
Citation (search report)
- [XI] US 2010185576 A1 20100722 - STRIZZI JEFF [US], et al
- [XI] WO 2009083995 A2 20090709 - GEN ELECTRIC [US], et al
- [X] JP H03239960 A 19911025 - NIPPON KOKAN KK
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2012081108 A1 20120405; US 8742752 B2 20140603; CA 2810980 A1 20120405; CA 2810980 C 20180306; EP 2622362 A1 20130807; EP 2622362 A4 20180530; EP 2622362 B1 20190410; EP 3514528 A1 20190724; EP 3514528 B1 20230906; ES 2733538 T3 20191129; ES 2960800 T3 20240306; JP 2013540268 A 20131031; JP 5669334 B2 20150212; KR 101734611 B1 20170511; KR 20130099085 A 20130905; WO 2012044330 A1 20120405
DOCDB simple family (application)
US 89594210 A 20101001; CA 2810980 A 20101005; EP 10858012 A 20101005; EP 19000062 A 20101005; ES 10858012 T 20101005; ES 19000062 T 20101005; JP 2013531559 A 20101005; KR 20137008237 A 20101005; US 2010051382 W 20101005